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// According to unRAR license, this code may not be used to develop
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// a program that creates RAR archives
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#ifndef __COMPRESS_RAR3_VM_H
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#define __COMPRESS_RAR3_VM_H
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#include "../../../C/CpuArch.h"
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#include "Common/MyVector.h"
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#include "Common/Types.h"
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#define RARVM_STANDARD_FILTERS
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void Init(const Byte *data, UInt32 byteSize)
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_bitSize = (byteSize << 3);
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UInt32 ReadBits(int numBits);
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bool Avail() const { return (_bitPos < _bitSize); }
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inline UInt32 GetValue32(const void *addr) { return GetUi32(addr); }
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inline void SetValue32(void *addr, UInt32 value) { SetUi32(addr, value); }
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UInt32 ReadEncodedUInt32(CMemBitDecoder &inp);
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const int kNumRegBits = 3;
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const UInt32 kNumRegs = 1 << kNumRegBits;
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const UInt32 kNumGpRegs = kNumRegs - 1;
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const UInt32 kSpaceSize = 0x40000;
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const UInt32 kSpaceMask = kSpaceSize -1;
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const UInt32 kGlobalOffset = 0x3C000;
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const UInt32 kGlobalSize = 0x2000;
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const UInt32 kFixedGlobalSize = 64;
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namespace NGlobalOffset
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const UInt32 kBlockSize = 0x1C;
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const UInt32 kBlockPos = 0x20;
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const UInt32 kExecCount = 0x2C;
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const UInt32 kGlobalMemOutSize = 0x30;
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CMD_MOV, CMD_CMP, CMD_ADD, CMD_SUB, CMD_JZ, CMD_JNZ, CMD_INC, CMD_DEC,
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CMD_JMP, CMD_XOR, CMD_AND, CMD_OR, CMD_TEST, CMD_JS, CMD_JNS, CMD_JB,
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CMD_JBE, CMD_JA, CMD_JAE, CMD_PUSH, CMD_POP, CMD_CALL, CMD_RET, CMD_NOT,
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CMD_SHL, CMD_SHR, CMD_SAR, CMD_NEG, CMD_PUSHA,CMD_POPA, CMD_PUSHF,CMD_POPF,
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CMD_MOVZX,CMD_MOVSX,CMD_XCHG, CMD_MUL, CMD_DIV, CMD_ADC, CMD_SBB, CMD_PRINT,
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CMD_MOVB, CMD_CMPB, CMD_ADDB, CMD_SUBB, CMD_INCB, CMD_DECB,
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CMD_XORB, CMD_ANDB, CMD_ORB, CMD_TESTB,CMD_NEGB,
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CMD_SHLB, CMD_SHRB, CMD_SARB, CMD_MULB
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enum EOpType {OP_TYPE_REG, OP_TYPE_INT, OP_TYPE_REGMEM, OP_TYPE_NONE};
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// Addr in COperand object can link (point) to CVm object!!!
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COperand(): Type(OP_TYPE_NONE), Data(0), Base(0) {}
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CRecordVector<CCommand> Commands;
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#ifdef RARVM_STANDARD_FILTERS
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int StandardFilterIndex;
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CRecordVector<Byte> StaticData;
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struct CProgramInitState
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UInt32 InitR[kNumGpRegs];
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CRecordVector<Byte> GlobalData;
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void AllocateEmptyFixedGlobal()
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GlobalData.Reserve(NVm::kFixedGlobalSize);
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for (UInt32 i = 0; i < NVm::kFixedGlobalSize; i++)
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static UInt32 GetValue(bool byteMode, const void *addr)
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return(*(const Byte *)addr);
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return GetUi32(addr);
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static void SetValue(bool byteMode, void *addr, UInt32 value)
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*(Byte *)addr = (Byte)value;
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SetUi32(addr, value);
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UInt32 GetFixedGlobalValue32(UInt32 globalOffset) { return GetValue(false, &Mem[kGlobalOffset + globalOffset]); }
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void SetBlockSize(UInt32 v) { SetValue(&Mem[kGlobalOffset + NGlobalOffset::kBlockSize], v); }
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void SetBlockPos(UInt32 v) { SetValue(&Mem[kGlobalOffset + NGlobalOffset::kBlockPos], v); }
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static void SetValue(void *addr, UInt32 value) { SetValue(false, addr, value); }
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UInt32 GetOperand32(const COperand *op) const;
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void SetOperand32(const COperand *op, UInt32 val);
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Byte GetOperand8(const COperand *op) const;
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void SetOperand8(const COperand *op, Byte val);
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UInt32 GetOperand(bool byteMode, const COperand *op) const;
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void SetOperand(bool byteMode, const COperand *op, UInt32 val);
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void DecodeArg(CMemBitDecoder &inp, COperand &op, bool byteMode);
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bool ExecuteCode(const CProgram *prg);
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#ifdef RARVM_STANDARD_FILTERS
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void ExecuteStandardFilter(int filterIndex);
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UInt32 R[kNumRegs + 1]; // R[kNumRegs] = 0 always (speed optimization)
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void ReadVmProgram(const Byte *code, UInt32 codeSize, CProgram *prg);
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void PrepareProgram(const Byte *code, UInt32 codeSize, CProgram *prg);
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void SetMemory(UInt32 pos, const Byte *data, UInt32 dataSize);
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bool Execute(CProgram *prg, const CProgramInitState *initState,
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CBlockRef &outBlockRef, CRecordVector<Byte> &outGlobalData);
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const Byte *GetDataPointer(UInt32 offset) const { return Mem + offset; }